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Mucinous tumours of appendix and ovary: an overview and evaluation of current practice
  1. Marjan Rouzbahman,
  2. Runjan Chetty
  1. Department of Pathology, Laboratory Medicine Program, University Health Network, University of Toronto, Toronto, Canada
  1. Correspondence to Dr Marjan Rouzbahman, Department of Pathology, 11th floor, Eaton wing, Toronto General Hospital, 200 Elizabeth Street, Toronto, Ontario, Canada M5G 2C4; Marjan.rouzbahman{at}


Mucinous lesions of the appendix and ovary are commonly encountered in routine practice. There are several published classification schemes for appendiceal mucinous neoplasms with resultant inconsistent use of terms and clinical doubt. While nomenclature is more settled with regards to ovarian mucinous neoplasms, the difficulty here lies with distinguishing primary from secondary mucinous tumours. This review highlights the terminology and nomenclature for appendiceal mucinous tumours, the relationship with ovarian mucinous neoplasms and pseudomyxoma peritonei, and the features that assist in separating primary from secondary ovarian mucinous tumours.


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